Hoisting device

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By adopting the limiting mechanism of the coupling of the limiting plate and the electric push rod in the lifting device, as well as the buffering mechanism of the arc plate and the telescopic spring, the cargo swing and collision problems caused by the shaking of the suspended rope is solved, and the stability and safety of the lifting process are improved.

CN222770502UActive Publication Date: 2025-04-18TIBET POWER JIANCHENG EXPLORATION INST ENG CO LTD

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Patent Information

Application Number: CN202421720310.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-07-18
Publication Date: 2025-04-18
Estimated Expiration: 2034-07-18

AI Technical Summary

Technical Problem

During the lifting process, the existing lifting and lifting devices shake the rope due to inertia forces, causing the cargo to swing, which increases the risk of collision and maintenance costs, and easily causes the lifting equipment to lose balance and increase the risk of overturning.

Method used

A lifting and hoisting device is designed, using a limiting plate and an electric push rod to limit the rope through the movement of the limiting plate to reduce the swing amplitude; at the same time, the combination of the first arc plate and the second arc plate and the telescopic spring is used to buffer the swing of the rope and prevent the cargo from colliding with the fixture.

Benefits of technology

It effectively reduces the swing range and range of the rope, reduces the collision risk between the cargo and the fixing frame, improves the stability and safety of the lifting process, and reduces maintenance costs.

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Figure CN222770502U_ABST

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Abstract

The utility model relates to a hoisting device, and belongs to the technical field of hoisting equipment. The limiting plate is mounted on the mounting plate of the lifting device through the electric push rod, the axis of the electric push rod is vertically arranged to drive the limiting plate to ascend and descend in the vertical direction, the limiting plate is located on the lifting moving path of the lifting rope, and the limiting groove allowing the lifting rope to penetrate through is formed in the middle of the limiting plate. A first lifting rope protection mechanism is arranged in the limiting groove and comprises a pair of first arc-shaped plates arranged on the left side and the right side of the lifting rope, the first arc-shaped plates are correspondingly connected to the left side wall and the right side wall of the limiting groove through first telescopic rods, and the concave arc faces of the first arc-shaped plates face the lifting rope. First telescopic springs are arranged on the peripheries of the first telescopic rods, one ends of the first telescopic springs are connected with the first arc-shaped plates, the other ends of the first telescopic springs are connected with the inner walls of the limiting grooves, and the axes of the first telescopic rods and the axes of the first telescopic springs are horizontally arranged in the left-right direction.

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Description

Technical Field

[0001] The utility model relates to a lifting and hoisting device, belonging to the technical field of lifting equipment. Background Art

[0002] Transmission and transformation engineering is a general term for transmission line construction and transformer installation engineering. When erecting transmission lines, it is necessary to lift components to a high place for assembly, so lifting and hoisting devices are often used. Existing lifting and hoisting devices usually include a fixed frame with a top plate, on which a mounting plate for installing the lifting device is arranged through a translation structure. The lifting device usually adopts an electric hoist or a winch. When lifting goods such as electrical equipment, the lifting rope is first lowered to a certain length, and then lifted with a hook, and the electrical equipment and the lifting device are moved as a whole by a translation mechanism. Since the goods are in a suspended state, the lifting rope will shake in the direction of movement due to the inertia force during the movement, and the lifting rope will drive the goods on the hook to swing. When the swing amplitude is too large, the goods on the hook will collide with the lifting equipment. This collision will not only cause wear between the target goods and the lifting equipment, increase the cost of maintenance and repair, but may also cause damage to the structure of the equipment. In addition, when the goods are swinging, the gravity distribution on the lifting equipment will change, which may easily cause the lifting equipment to lose balance and increase the risk of overturning. Utility Model Content

[0003] The utility model aims to provide a lifting and hoisting device to solve the technical problem of high safety risk in the lifting process.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a lifting and hoisting device comprises a fixing frame, a mounting plate, a lifting device and a hook, the fixing frame has a top plate, the mounting plate is mounted on the top plate by a translation mechanism, the mounting plate can be reciprocated horizontally along the left and right directions with the help of the translation mechanism, the lifting device is fixedly arranged on the mounting plate, the output end of the lifting device is connected to the hook by a lifting rope, the lifting device can drive the hook to rise and fall vertically by the lifting rope, a limit plate is installed on the mounting plate by an electric push rod, the axis of the electric push rod is vertically arranged to drive the limit plate to rise and fall vertically, and the limit plate is located at the lifting position of the lifting rope On the moving path, the middle part of the limiting plate has a limiting groove for the lifting rope to pass through, and at least one group of first protection mechanisms for the lifting rope is arranged in the limiting groove, and each group of first protection mechanisms for the lifting rope includes a pair of first arc-shaped plates arranged on the left and right sides of the lifting rope, and the first arc-shaped plates are respectively connected to the left and right side walls of the limiting groove through the first telescopic rod, and the concave arc surface of the first arc-shaped plate faces the lifting rope, and the outer periphery of the first telescopic rod is equipped with a first telescopic spring, one end of the first telescopic spring is connected to the first arc-shaped plate, and the other end is connected to the inner wall of the limiting groove, and the axes of the first telescopic rod and the first telescopic spring are horizontally arranged along the left and right directions.

[0005] A further preferred solution is that the translation mechanism includes a first slide groove opened on the top plate and a rotating motor fixed on one side of the top plate, the output end of the rotating motor is transmission-connected with a first threaded rod, the first threaded rod is rotatably arranged in the first slide groove, the outer surface of the first threaded rod is threadedly connected with a thread block, and the outer surface of the thread block is in sliding contact with the inner wall of the first slide groove, and the bottom surface of the thread block is fixedly connected to the upper surface of the mounting plate.

[0006] A further preferred solution is that a second slide groove is arranged in parallel with the first slide groove on the upper surface of the top plate, a slide rod is fixedly installed on the inner wall of the second slide groove, a slider is slidably connected to the outer surface of the slide rod, the sliding direction of the slider is consistent with the sliding direction of the threaded block, and the bottom surface of the slider is fixedly connected to the upper surface of the mounting plate.

[0007] A further preferred solution is that the lifting device is a double-rope winch, the lifting device is connected to a hook through two ropes arranged in parallel, a fixed plate is provided between the hook and the ropes, the hook is connected to the lower surface of the fixed plate, and the two ropes are connected to the upper surface of the fixed plate; the two ropes are arranged at intervals along the front-to-back direction, and each rope is provided with a set of first rope protection mechanisms.

[0008] A further preferred scheme is that a second rope protection mechanism is arranged above or below the limiting plate above or below the first rope protection mechanism, and the second rope protection mechanism includes a pair of second arc-shaped plates arranged opposite to each other, the concave arc surfaces of the second arc-shaped plates face each other, and the convex arc surfaces of the second arc-shaped plates are connected to the limiting support seats on one side through the second telescopic rod, the limiting support seats are fixedly connected to the limiting plate, and the outer periphery of the second telescopic rod is provided with a second telescopic spring, one end of the second telescopic spring is connected to the second arc-shaped plate, and the other end is connected to the limiting support seat, and the axes of the second telescopic rod and the second telescopic spring are both horizontally arranged along the front and rear directions; one of the second arc-shaped plates is arranged in the rear area of the rear rope, and the other second arc-shaped plate is arranged in the front area of the front rope.

[0009] A further preferred solution is that the fixing frame includes a base, the left side of the upper surface of the base is fixedly connected to the top plate via a vertical plate, and the right side of the vertical plate is fixedly connected to an anti-collision plate; a counterweight block is provided in the middle area of the upper surface of the base.

[0010] A further preferred solution is that the fixing frame includes a base, and a universal wheel is mounted on the bottom surface of the base.

[0011] A further preferred solution is that several groups of support components are provided on the side of the base, each group of support components includes a horizontal straight plate fixed on one side of the base, the end of the horizontal straight plate away from the base is threadedly connected to a second threaded rod through a threaded hole, the axis of the second threaded rod is vertically arranged, a suction cup is fixed to the bottom end of the second threaded rod, and a turning handle is fixed to the top end of the second threaded rod.

[0012] The beneficial effect of the utility model is that during implementation, the cargo can first be lifted to a suitable height using the lifting device, and then the electric push rod can be used to move the limit plate to a suitable height position (slightly higher than the top position of the hook, and limited according to the length of the lifting rope), and finally the cargo can be translated to a suitable position. In the process of translation of the cargo, the limit plate can limit the lifting rope, reduce the swing amplitude and range of the lifting rope, and when the lifting rope swings, it will push the first arc plate and the second arc plate to squeeze the first telescopic spring and the second telescopic spring to generate elastic force, and use its elastic force to buffer the swing of the lifting rope, so as to avoid the situation where the cargo hits the fixed frame due to the excessive swing amplitude of the lifting rope. In addition, the utility model can make the bottom surface of the suction cup contact with the ground through the rotation of the second threaded rod, thereby increasing the contact area between the device and the ground and improving the stability of the device when lifting objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 It is a structural schematic diagram of the lifting device in the utility model;

[0016] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0017] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0018] The markings in the figure are: 101-top plate; 102-base; 103-vertical plate;

[0019] 201-electric push rod; 202-lifting device; 203-limiting plate; 204-limiting groove; 205-lifting rope; 206-hook; 207-first telescopic rod; 208-first telescopic spring; 209-fixing plate; 210-first arc plate; 211-second telescopic rod; 212-second arc plate; 213-second telescopic spring; 214-limiting support seat;

[0020] 301-first slide slot; 302-rotating motor; 303-first threaded rod; 304-threaded block; 305-mounting plate; 306-second slide slot; 307-slide rod; 308-sliding block;

[0021] 501-horizontal straight plate; 502-handle; 503-second threaded rod; 504-suction cup;

[0022] 6-universal wheel; 7-counterweight; 8-controller; 9-anti-collision plate. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 5 As shown, the utility model includes a fixed frame, a mounting plate 305, a lifting device 202 and a hook 206. The fixed frame has a top plate 101. The mounting plate 305 is mounted on the top plate 101 through a translation mechanism. The mounting plate 305 can move horizontally back and forth in the left and right directions with the help of the translation mechanism. The lifting device 202 is fixedly arranged on the mounting plate 305. The output end of the lifting device 202 is connected to the hook 206 through a suspension rope 205. The lifting device 202 can drive the hook 206 to rise and fall vertically through the suspension rope 205. The characteristic is that a limit plate 203 is installed on the mounting plate 305 through an electric push rod 201. The axis of the electric push rod 201 is vertically arranged to drive the limit plate 203 to rise and fall vertically. The limit plate 203 is located at the lifting and falling movement of the suspension rope 205. On the moving path, the middle part of the limiting plate 203 has a limiting groove 204 for the suspension rope 205 to pass through, and at least one group of first protection mechanisms for the suspension rope is arranged in the limiting groove 204. Each group of first protection mechanisms for the suspension rope includes a pair of first arc-shaped plates 210 arranged on the left and right sides of the suspension rope 205. The first arc-shaped plates 210 are respectively connected to the left and right side walls of the limiting groove 204 through the first telescopic rod 207, and the concave arc surface of the first arc-shaped plate 210 faces the suspension rope 205. The outer periphery of the first telescopic rod 207 is provided with a first telescopic spring 208, one end of the first telescopic spring 208 is connected to the first arc-shaped plate 210, and the other end is connected to the inner wall of the limiting groove 204, and the axes of the first telescopic rod 207 and the first telescopic spring 208 are horizontally arranged along the left and right directions. It can be understood that the number of first rope protection mechanisms is related to the number of ropes 205. Generally speaking, one set of first rope protection mechanisms can be set for each rope 205; for multiple ropes 205 that are distributed at intervals on the left and right and located on the same straight line, they can share a set of first rope protection mechanisms as a whole, that is, a first curved plate 210 is arranged on the left side area of the leftmost rope 205, and a first curved plate 210 is arranged on the right side area of the rightmost rope 205.

[0025] Specifically, the first telescopic rod 207 is a conventional structure, that is, it includes a coaxially arranged fixed cylinder and a movable rod; the first telescopic spring 208 can be directly coaxially sleeved on the first telescopic rod 207, or multiple first telescopic springs 208 can be arranged in parallel on the outer periphery of the first telescopic rod 207. By starting the electric push rod 201 to drive the limit plate 203 to move, it can be limited according to the length of the suspension rope 205, reducing the swing amplitude and range of the suspension rope 205. When the suspension rope 205 swings, it will push the first arc plate 210 to squeeze the first telescopic spring 208, so that it can generate elastic force, which can buffer the swing of the suspension rope 205 and avoid the situation where the cargo hits the fixed frame due to the excessive swing amplitude of the suspension rope 205. In order to make the structure more reliable, multiple electric push rods 201 can be arranged in parallel.

[0026] The translation mechanism can adopt various existing linear displacement mechanisms. In order to make the structure simple and reliable, the preferred solution is that the translation mechanism includes a first slide 301 opened on the top plate 101 and a rotating motor 302 fixed on one side of the top plate 101. The output end of the rotating motor 302 is connected to the first threaded rod 303 (the two can be directly fixedly connected, or an intermediate transmission structure can be added, as long as the first threaded rod 303 can be driven to rotate normally). The first threaded rod 303 is rotatably arranged in the first slide 301. The outer surface of the first threaded rod 303 is threadedly connected to a thread block 304, and the outer surface of the thread block 304 is in sliding contact with the inner wall of the first slide 301. The bottom surface of the thread block 304 is fixedly connected to the upper surface of the mounting plate 305. The rotating motor 302 is started to drive the first threaded rod 303 to rotate. The rotation of the first threaded rod 303 can drive the thread block 304 to move. At the same time, the movement of the thread block 304 can drive the mounting plate 305 and the lifting device 202 to move together, thereby completing the movement of the goods.

[0027] In order to further improve the reliability of the translation mechanism, a second slide groove 306 is provided on the upper surface of the top plate 101 and arranged in parallel with the first slide groove 301. A slide bar 307 is fixedly installed on the inner wall of the second slide groove 306. A slider 308 is slidably connected to the outer surface of the slide bar 307. The sliding direction of the slider 308 is consistent with the sliding direction of the threaded block 304. The bottom surface of the slider 308 is fixedly connected to the upper surface of the mounting plate 305. By providing the slide bar 307 and the slider 308, the movement of the mounting plate 305 and the lifting device 202 can be additionally supported and guided.

[0028] The lifting device 202 can be a conventional electric hoist or winch, and the first rope protection mechanism and the rope 205 can correspond to each other. In order to improve the lifting capacity, the lifting device 202 preferably adopts a double-rope winch, which has two drums arranged in parallel, and can output two ropes 205 arranged in parallel in the same direction. The lifting device 202 is connected to the hook 206 through the two ropes 205 arranged in parallel. A fixing plate 209 is arranged between the hook 206 and the rope 205. The hook 206 is connected to the lower surface of the fixing plate 209, and the two ropes 205 are connected to the upper surface of the fixing plate 209; the two ropes 205 are arranged at intervals along the front-to-back direction, and each rope 205 is correspondingly provided with a set of first rope protection mechanisms.

[0029] The offset direction of the lifting rope 205 is mainly consistent with the translation direction of the goods. Generally, only the first lifting rope protection mechanism is required. However, in order to further improve the overall reliability of the device, a second lifting rope protection mechanism in another direction may be further provided. Specifically, the limiting plate 203 is provided with a second lifting rope protection mechanism above or below the first lifting rope protection mechanism. The second lifting rope protection mechanism includes a pair of second arc plates 212 arranged opposite to each other, the concave arc surfaces of the second arc plates 212 face each other, and one side of the convex arc surface of the second arc plate 212 is connected with a The limiting support seat 214 is fixedly connected to the limiting plate 203. The outer periphery of the second telescopic rod 211 is sleeved with a second telescopic spring 213. One end of the second telescopic spring 213 is connected to the second curved plate 212, and the other end is connected to the limiting support seat 214. The axes of the second telescopic rod 211 and the second telescopic spring 213 are arranged horizontally along the front-to-back direction; one of the second curved plates 212 is arranged in the rear area of the rear suspension rope 205, and the other second curved plate 212 is arranged in the front area of the front suspension rope 205. The second telescopic spring 213 can be directly coaxially sleeved on the second telescopic rod 211, or multiple second telescopic springs 213 can be arranged in parallel on the outer periphery of the second telescopic rod 211. The second telescopic rod 211 is also a conventional structure, that is, it includes a coaxially arranged fixed cylinder and a movable rod. The working principle of the second protection mechanism of the suspension rope is similar to that of the first protection mechanism of the suspension rope, which can further prevent the suspension rope 205 from excessively deviating in the front-to-back direction.

[0030] The fixing frame can generally adopt a door-type frame structure (vertical plates 103 are symmetrically arranged on both sides) and a U-shaped frame structure (vertical plates 103 are arranged on one side). In order to obtain a larger lifting space, the utility model preferably adopts a U-shaped frame structure. Specifically, the fixing frame includes a base 102, and the left side of the upper surface of the base 102 is fixedly connected to the top plate 101 through the vertical plate 103. In order to improve the protection capability, the right side surface of the vertical plate 103 is fixedly connected with an anti-collision plate 9; in order to improve the stability of the fixing frame, a counterweight block 7 is provided in the middle area of the upper surface of the base 102.

[0031] In order to facilitate the overall movement of the device, a universal wheel 6 is installed on the bottom surface of the base 102. The universal wheel 6 can be positioned by its own brake device. In order to further improve the stability of the device, a plurality of support components are provided on the side of the base 102, each of which includes a horizontal straight plate 501 fixed to one side of the base 102, and a second threaded rod 503 is threadedly connected to the end of the horizontal straight plate 501 away from the base 102 through a threaded hole. The axis of the second threaded rod 503 is vertically arranged, and a suction cup 504 is fixed to the bottom end of the second threaded rod 503, and a turning handle 502 is fixed to the top end of the second threaded rod 503. The bottom surface of the suction cup 504 can be brought into contact with the ground by the rotation of the second threaded rod 503, thereby increasing the contact area between the device and the ground and improving the stability of the device when lifting goods.

[0032] It is understandable that the device needs to be equipped with a necessary controller 8 to control the operation of the lifting device 202, the rotating motor 302 and other equipment. The controller 8 can be installed in a suitable position, generally on the front side of the vertical plate 103.

Claims

1. A lifting and hoisting device, comprising a fixed frame, a mounting plate (305), a lifting device (202) and a hook (206), wherein the fixed frame has a top plate (101), the mounting plate (305) is mounted on the top plate (101) by a translation mechanism, the mounting plate (305) can be reciprocated horizontally along the left and right directions by means of the translation mechanism, the lifting device (202) is fixedly arranged on the mounting plate (305), the output end of the lifting device (202) is connected to the hook (206) by a suspension rope (205), and the lifting device (202) can drive the hook (206) to rise and fall vertically by the suspension rope (205), characterized in that: A limit plate (203) is installed on the mounting plate (305) via an electric push rod (201). The axis of the electric push rod (201) is vertically arranged to drive the limit plate (203) to move up and down vertically. The limit plate (203) is located on the lifting and lowering movement path of the suspension rope (205). The middle part of the limit plate (203) has a limit groove (204) for the suspension rope (205) to pass through. At least one set of first suspension rope protection mechanisms is arranged in the limit groove (204). Each set of first suspension rope protection mechanisms includes a pair of first arc-shaped plates (204) arranged on the left and right sides of the suspension rope (205). 210), the first arc plate (210) is respectively connected to the left and right side walls of the limiting groove (204) through the first telescopic rod (207), and the concave arc surface of the first arc plate (210) faces the suspension rope (205), and the outer periphery of the first telescopic rod (207) is provided with a first telescopic spring (208), one end of the first telescopic spring (208) is connected to the first arc plate (210), and the other end is connected to the inner wall of the limiting groove (204), and the axes of the first telescopic rod (207) and the first telescopic spring (208) are both arranged horizontally along the left and right directions.

2. The lifting and hoisting device according to claim 1, characterized in that: The translation mechanism comprises a first slide groove (301) provided on the top plate (101) and a rotating motor (302) fixed on one side of the top plate (101); the output end of the rotating motor (302) is drivingly connected to a first threaded rod (303); the first threaded rod (303) is rotatably arranged in the first slide groove (301); the outer surface of the first threaded rod (303) is threadedly connected to a threaded block (304); the outer surface of the threaded block (304) is in sliding contact with the inner wall of the first slide groove (301); the bottom surface of the threaded block (304) is fixedly connected to the upper surface of the mounting plate (305).

3. The lifting and hoisting device according to claim 2, characterized in that: The upper surface of the top plate (101) is provided with a second slide groove (306) arranged in parallel with the first slide groove (301); a slide rod (307) is fixedly installed on the inner wall of the second slide groove (306); a slider (308) is slidably connected to the outer surface of the slider rod (307); the sliding direction of the slider (308) is consistent with the sliding direction of the threaded block (304); and the bottom surface of the slider (308) is fixedly connected to the upper surface of the mounting plate (305).

4. The lifting and hoisting device according to claim 1, characterized in that: The lifting device (202) is a double-rope winch. The lifting device (202) is connected to a hook (206) through two suspension ropes (205) arranged in parallel. A fixing plate (209) is arranged between the suspension hook (206) and the suspension rope (205). The suspension hook (206) is connected to the lower surface of the fixing plate (209), and the two suspension ropes (205) are both connected to the upper surface of the fixing plate (209). The two suspension ropes (205) are arranged at intervals along the front-to-back direction, and each suspension rope (205) is correspondingly provided with a set of first suspension rope protection mechanisms.

5. The lifting and hoisting device according to claim 4, characterized in that: The limiting plate (203) is provided with a second rope protection mechanism above or below the first rope protection mechanism, and the second rope protection mechanism comprises a pair of second arc-shaped plates (212) arranged opposite to each other, the concave arc surfaces of the second arc-shaped plates (212) face each other, and one side of the convex arc surface of the second arc-shaped plates (212) is connected to a limiting support seat (214) through a second telescopic rod (211), the limiting support seat (214) is fixedly connected to the limiting plate (203), and the outer periphery of the second telescopic rod (211) is A second telescopic spring (213) is provided, one end of the second telescopic spring (213) is connected to the second arc plate (212), and the other end is connected to the limit support seat (214), and the axes of the second telescopic rod (211) and the second telescopic spring (213) are both arranged horizontally along the front-to-back direction; one of the second arc plates (212) is arranged at the rear area of the rear suspension rope (205), and the other second arc plate (212) is arranged at the front area of the front suspension rope (205).

6. The lifting and hoisting device according to any one of claims 1 to 5, characterized in that: The fixing frame comprises a base (102), the left side of the upper surface of the base (102) is fixedly connected to the top plate (101) via a vertical plate (103), and the right side of the vertical plate (103) is fixedly connected to an anti-collision plate (9); a counterweight block (7) is provided in the middle area of the upper surface of the base (102).

7. The lifting and hoisting device according to any one of claims 1 to 5, characterized in that: The fixing frame comprises a base (102), and a universal wheel (6) is installed on the bottom surface of the base (102).

8. The lifting and hoisting device according to claim 7, characterized in that: A plurality of support components are provided on the side of the base (102), each support component comprising a horizontal straight plate (501) fixed on one side of the base (102), one end of the horizontal straight plate (501) away from the base (102) being threadedly connected to a second threaded rod (503) through a threaded hole, the axis of the second threaded rod (503) being arranged vertically, a suction cup (504) being fixed to the bottom end of the second threaded rod (503), and a turning handle (502) being fixed to the top end of the second threaded rod (503).